Cat and muffler options on a '99 Suburban (K2500, 4WD with the 7.4L / 454 engine)

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oifla

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Hello all,

I have a stock 1999 Suburban (K2500, 4WD with the 7.4L/454 engine).

The truck needs one of the catalytic converters replaced and I figured that while I'm into one, I might as well replace the other and update the muffler.

ANy recommendations on catalytic/piping/muffler combinations?

I'm would like to open the exhaust up a bit as the stock muffler seems very restrictive but I'm not seeing a whole lot of info on what is available. I think I'm going to go 2.5" catalytics and 3" piping and muffler after that but I am posting/asking because I am not set on that. Would appreciate any thoughts / experiences with cats/exhaust set-ups on the 7.4L

Thanks!
 

offrdr

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sounds about exactly what i'm looking at as well. looks like we get to do our own research.:D
 

Tonyrodz

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I have 2 brand new after market 3' cats that I'm selling, if you'd be interested. Bought them for my setup, but went catless instead. IMAG1114.jpg IMAG1116.jpg IMAG1120.jpg
 

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